diff --git a/Src/Asp.Net/SqlSugar/Abstract/SqlBuilderProvider/SqlBuilderProvider.cs b/Src/Asp.Net/SqlSugar/Abstract/SqlBuilderProvider/SqlBuilderProvider.cs
index 9a4480915..e0504e160 100644
--- a/Src/Asp.Net/SqlSugar/Abstract/SqlBuilderProvider/SqlBuilderProvider.cs
+++ b/Src/Asp.Net/SqlSugar/Abstract/SqlBuilderProvider/SqlBuilderProvider.cs
@@ -205,6 +205,10 @@ namespace SqlSugar
                             {
                                 inValue1 = $"('{Guid.Empty.ToString()}')";
                             }
+                            else if (inValue1 == "()")
+                            {
+                                inValue1 = $"(NULL)";
+                            }
                             builder.AppendFormat(temp, type, item.FieldName.ToSqlFilter(), "IN", inValue1);
                             parameters.Add(new SugarParameter(parameterName, item.FieldValue));
                             break;